Home / 8,721.83-12,036.12-4,742.94

Finding the Fourth Proportional to 8,721.83, 12,036.12 and 4,742.94

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Solution

The fourth proportional to 8,721.83, 12,036.12 and 4,742.94 is: 6,545.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.83 : 12,036.12 = 4,742.94 : x
  2. Step 2: Convert to fraction form
    8,721.83/12,036.12 = 4,742.94/x
  3. Step 3: Cross multiply
    8,721.83x = 12,036.12 × 4,742.94
  4. Step 4: Simplify right side
    8,721.83x = 57,086,594.99
  5. Step 5: Solve for x
    x = 57,086,594.99/8,721.83
  6. Step 6: Final answer
    x = 6,545.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.